ICD-10 Code
International Classification of Diseases, 10th Revision
Jan 23, 2019

See: Other and unspecified acute appendicitis

K35.89 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Other acute appendicitis

More specific codes for Other acute appendicitis

  • K35.890 - Other acute appendicitis without perforation or gangrene
  • K35.891 - Other acute appendicitis without perforation, with gangrene
See the ICD-10-CM Coding Guidelines.

Questions related to K35.89 Other acute appendicitis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.